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Originally Posted by alantf
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Originally Posted by burkbuilds
Once I had it apart I started checking things out and I found that my old sprocket was 12" in diameter, the one in the kit is 12-1/2" in diameter. I think if it had been 12" it would not have a clearance problem. My first thought was to swap them, but the bolt pattern was different and the center hole in the kit was larger and the sprocket had about a dozen drilled and tapped holes where the carrier attached to it. So I decided to open up the housing. First I tried to file enough away, but that was slow going.
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Have you been in touch with the manufacturers, to find out why they've made a mistake? They may not be aware of their error.  |
I doubt the larger sprocket is an error. It may have been a means of retaining the original factory gearing with the different wheels on the back. Or possibly to change the gearing a bit to compensate for the extra weight of the entire machine after assembly. The small opening for the belt is odd but BB cured that quickly enough.